Question

Decide which of the two given prices is the better deal and explain why.

You can buy shampoo in a 5-ounce bottle for $2.69 or in a 14-ounce bottle for $10.89.

Answer 1

5-ounce bottle for $2.69 is the better deal

Explanation:

From the given cases;

Let's determine the cost of 1-ounce of the shampoo's price in both cases

The first one provides us with information about puchasing a shampoo in a 5-ounce bottle which cost $2.69

Suppose:

5 - ounce = $2.69

1 - ounce = x

By cross multiplying:

1-ounce × $2.69 = 5-ounce × (x)

(x) = (1-ounce × $2.69 )/ 5-ounce

x = $0.538

For the second case;

A 14-ounce bottle costs $10.89

The 1-ounce wil costs $x

(x) = (1-ounce × $10.89 )/ 14-ounce

(x) = $0.7778

Therefore, we can conclude that it is better to buy the shampoo in a 5-ounce bottle for $2.69 than the 14-ounce bottle because , the lowest value of 1 ounce in 5-ounce bottle for $2.69 seems to be cheaper than the 14-ounce bottle.